WO2017097164A1

WO2017097164A1 - Low-frequency oscillator and multi-frequency multi-port antenna apparatus

Info

Publication number: WO2017097164A1
Application number: PCT/CN2016/108408
Authority: WO
Inventors: 谢莫诺夫康斯坦; 徐澄宇; 李耀焕
Original assignee: 上海贝尔股份有限公司
Priority date: 2015-12-10
Filing date: 2016-12-02
Publication date: 2017-06-15
Also published as: KR20200118253A; KR102412429B1; US20240136706A1; EP3389138A1; EP3389138A4; JP2019506030A; KR20180085037A; US20180358692A1; US11848492B2; CN106876885A; US20240235017A9; JP7049994B2

Abstract

The present invention provides a low-frequency oscillator and a multi-frequency multi-port antenna apparatus. The low-frequency oscillator has four oscillator arms, which are horizontally and vertically arranged in a cross , and feeding is carried out between two adjacent oscillator arms that are perpendicular to each other. The antenna apparatus comprises a main reflection plate, at least one column of a low-frequency oscillator array arranged on the main reflection plate and at least one column of a high-frequency oscillator array adjacent to the at least one column of the low-frequency oscillator array, wherein at least one low-frequency oscillator in each of the at least one columns of the low-frequency oscillator array satisfies the following conditions: the low-frequency oscillator has four oscillator arms, the four oscillator arms are horizontally and vertically in a cross, and feeding is carried out between two adjacent oscillator arms that are perpendicular to each other, forming a +/- 45-degree polarization. By adopting the structure of the low-frequency oscillator for the multi-frequency multi-port antenna apparatus , the high-frequency oscillator arm and the low-frequency oscillator arm thereof are no longer blocked by each other, and cross - coupling of the high-frequency oscillator and the low-frequency oscillator is reduced .

Description

Low frequency oscillator and multi-frequency multi-port antenna device

Technical field

The present invention relates to the field of communications technologies, and in particular, to a low frequency oscillator and a multi-frequency multi-port antenna device including the low frequency oscillator.

Background technique

The arrangement of the existing multi-frequency multi-port antenna devices is generally in a nested manner, as shown in Figure 1-a. The high-frequency vibrator is in the middle of the low-frequency vibrator. This arrangement inevitably leads to a great influence on the mutual coupling between the high- and low-frequency oscillators. As a result, the standing wave of the high-frequency vibrator placed in the middle of the low-frequency vibrator becomes worse, the pattern is deformed, and the isolation index is difficult to debug. The high-frequency oscillator placed on the periphery of the low-frequency oscillator is also significantly affected by the low-frequency oscillator arm. It has less influence on the standing wave and isolation, and has a greater influence on the pattern. The middle high-frequency oscillator also affects the standing wave and isolation of the low-frequency oscillator. . It is usually necessary to simultaneously optimize the low frequency oscillator and the high frequency oscillator in this arrangement, which is very technically difficult.

The existing multi-frequency multi-port antenna device also often adopts an arrangement as shown in FIG. 1-b. This arrangement determines that the vibrator arm of the low-frequency vibrator must be placed above the high-frequency vibrator due to the feeding mode of the low-frequency vibrator. Decoupling between high and low frequency oscillators becomes a big problem. Mutual coupling causes the pattern of high and low frequency oscillators to suddenly deteriorate in some frequency bands, resulting in a sudden deterioration of the antenna performance of these frequencies, and the direction of such low frequency oscillators. The beam width is wide, which can not meet the high performance indicators required by customers.

Therefore, how to solve the problem of reasonable alignment between high and low frequency oscillators in the multi-frequency multi-port antenna device while solving the strong mutual coupling between the high and low frequency oscillators has become one of the problems that those skilled in the art need to solve.

Summary of the invention

It is an object of the present invention to provide a low frequency oscillator and a multi-frequency multi-port antenna apparatus including the low frequency oscillator.

According to an aspect of the invention, a low frequency oscillator is provided, wherein the low frequency oscillator The sub-arm has four vibrator arms that are placed horizontally vertically in a "+" shape and fed between each adjacent two mutually perpendicular vibrator arms.

Preferably, the manner of feeding includes at least one of the following:

Coupled feed;

Direct feed.

Preferably, at least one of the four vibrator arms is in the form of a sheet.

Preferably, at least one of the four vibrator arms is cylindrical.

Preferably, at least one of the four vibrator arms is a combination of a cylindrical solid wire and a cylindrical hollow metal casing, the cross-sectional area of the cylindrical hollow metal casing and the transverse direction of the cylindrical solid wire. The cross-sectional area is not the same.

Preferably, at least one of the four vibrator arms is provided with a reverse current loop.

Preferably, at least one of the four vibrator arms is provided with at least one groove.

According to another aspect of the present invention, a multi-frequency multi-port antenna device is further provided, wherein the antenna device comprises: a main reflector, at least one array of low frequency oscillators disposed on the main reflector, and at least a column of at least one column of high frequency oscillators adjacent to the array of low frequency oscillators, wherein each of said at least one column of low frequency oscillator arrays includes at least one low frequency oscillator as described above, wherein said low frequency oscillator and said high frequency oscillator are not Block each other.

Preferably, at least one corner of the four vibrator arms of the at least one low frequency vibrator placed horizontally and vertically in a "+" shape is provided with a high frequency vibrator.

More preferably, the type of the high frequency vibrator disposed on the at least one corner may be different.

Preferably, the cross-sectional area of the at least one vibrator arm in the shape of a column is set according to antenna performance requirements.

Preferably, the cross-sectional area of the cylindrical hollow metal casing and the cross-sectional area of the solid wire of the cylinder are respectively set according to antenna performance requirements.

Compared with the prior art, the present invention has the following advantages:

The four vibrator arms of the low frequency vibrator of the multi-frequency multi-port antenna device of the present invention are placed horizontally and vertically by using a "+" shape, and each adjacent two are perpendicular to each other. The feeding between the vibrator arms forms a +/- 45 degree polarization, which solves the problem that the high and low frequency vibrator arms block each other, and is beneficial for reducing the mutual coupling between the high and low frequency vibrators.

Further, the mutual coupling between the high and low frequency oscillators is further reduced by adding a reverse current loop to the vibrator arm of the low frequency vibrator, changing the shape, cross sectional area of the vibrator arm of the low frequency vibrator or opening a groove on the vibrator arm. And improve the pattern performance of the antenna device and change the standing wave bandwidth of the low frequency oscillator to improve the performance of the antenna device.

DRAWINGS

Other features, objects, and advantages of the present invention will become more apparent from the Detailed Description of Description

FIG. 1-a is a schematic structural diagram of a conventional multi-frequency multi-port antenna device;

FIG. 1-b is a schematic structural diagram of another conventional multi-frequency multi-port antenna device;

Figure 2-a shows a top view of a low frequency oscillator in accordance with one embodiment of the present invention;

Figure 2-b shows a side view of a low frequency oscillator in accordance with one embodiment of the present invention;

Figure 2-c illustrates a low frequency oscillator in accordance with a preferred embodiment of the present invention;

Figure 2-d illustrates a low frequency oscillator in accordance with a preferred embodiment of the present invention;

Figure 2-e illustrates a low frequency oscillator in accordance with a preferred embodiment of the present invention;

FIG. 3-a shows a schematic structural diagram of a multi-frequency multi-port antenna apparatus including the low frequency oscillator according to another embodiment of the present invention.

FIG. 3-b is a schematic diagram showing a high frequency vibrator disposed at a corner of a low frequency oscillator of a multi-frequency multi-port antenna apparatus according to an embodiment of the present invention; FIG.

Figure 3-c shows a schematic diagram of two different types of high frequency oscillators disposed at two corners of a low frequency oscillator of a multi-frequency multi-port antenna arrangement in accordance with another embodiment of the present invention.

The same or similar reference numerals in the drawings denote the same or similar components.

detailed description

The detailed structural and functional details disclosed herein are merely representative and are for the purpose of describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms. And should not be construed as being limited only to the embodiments set forth herein.

The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur in a different order than that illustrated in the drawings. For example, two figures shown in succession may in fact be executed substantially concurrently or sometimes in the reverse order, depending on the function/acts involved.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It should also be understood that, unless explicitly defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be idealized. Or too formal meaning to explain.

The invention is further described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and the features of the embodiments in the present application may be combined with each other without conflict.

According to an aspect of the invention, a low frequency vibrator is provided, wherein the low frequency vibrator has four vibrator arms, the four vibrator arms are horizontally placed in a "+" shape, and each adjacent two are mutually Feed between the vertical vibrator arms.

One of the embodiments is shown in Figures 2-a, 2-b.

Figure 2-a shows a top view of a low frequency oscillator in accordance with one embodiment of the present invention, and Figure 2-b shows a side view of a low frequency oscillator in accordance with one embodiment of the present invention. The low frequency vibrator 2 includes four vibrator arms 201 that are placed horizontally vertically in a "+" shape and fed between each adjacent two mutually perpendicular vibrator arms. As shown in Figure 2-b, the vibrator arm 201 is connected to the feed line via the feed point 202 for soldering. Wherein, each of the vibrator arms has a feeding point 202 corresponding to the same position, and each adjacent two mutually perpendicular vibrator arms are fed with each other. A +/- 45 degree polarized antenna element is formed.

Here, the four vibrator arms of the low frequency vibrator 2 are placed horizontally and vertically in a "+" shape, and are structurally identical to the horizontally vertically polarized antenna vibrator, but due to the feeding between two adjacent mutually perpendicular vibrator arms, A +/- 45 degree polarized antenna element is formed. The low frequency antenna element of the structure overcomes the problem of mutual blocking of the high and low frequency oscillator arms when combined with the high frequency oscillator using the conventional +/- 45 degree polarized antenna element, which is beneficial to reduce the relationship between the high and low frequency oscillators. Mutual coupling.

The manner in which the low frequency vibrator feeds between two adjacent mutually perpendicular vibrator arms includes but is not limited to:

1) Coupled feed. For example, a coupling feed is performed between each adjacent two mutually perpendicular vibrator arms 201 in the low frequency vibrator 2, as shown in FIG. 2-b, the feed line 207 is welded to the vibrator arm 201 through the feed point 202, and the feed line 207 is self-feeding. The electric point 202 extends vertically upwards, as shown in the feeder section d1 in FIG. 2-b, and has a right angle bend in the middle as shown in FIG. 2-b. The feeder section d4 is parallel to the d1, and the feeder section d4 is parallel to d1. The coupling feed of each adjacent two vibrator arms is realized, and after the field strengths of the four vibrator arms are respectively combined and superimposed, for example, the

field strengths

203 and 204 in FIG. 2-a are superimposed and combined, and 205 and 206 are superimposed and combined. Formed a +/- 45 degree polarized antenna element.

2) Direct feeding. By directly feeding each adjacent two vibrator arms, the field strengths of the four vibrator arms are combined and superimposed, respectively, and a +/- 45 degree polarized antenna vibrator is formed.

It should be understood by those skilled in the art that the above feeding mode is only an example, and existing or later feeding modes may be applicable to the present invention, and should also be included in the scope of the present invention, and are cited herein. The way is included here.

Preferably, at least one of the four vibrator arms of the low frequency vibrator 2 has a sheet shape. For example, the vibrator arm 201 of the low frequency vibrator 2 shown in Fig. 2-b is in the form of a sheet, and the vibrator arms of the sheet structure are placed vertically. The vibrator arm adopts a sheet structure to facilitate the provision of grooves on the vibrator arm, optimizing the standing wave of the antenna, the pattern and the cross polarization discrimination rate, and the use of the sheet structure makes the processing and design more convenient.

Preferably, at least one of the four vibrator arms of the low frequency vibrator 2 has a columnar shape. Wherein, the columnar structure includes but is not limited to: a cylinder, a polygonal prism, or the like, and the polygonal prism includes but not Limited to: triangular prisms, quadrangular prisms or columnar bodies with multiple ribs. For example, FIG. 2-c illustrates a low frequency vibrator according to a preferred embodiment of the present invention, the four vibrator arms 201 of the low frequency vibrator 2 adopt a cylindrical structure, and the vibrator arm 201 is horizontally placed in a "+" shape. And feeding between two adjacent mutually perpendicular vibrator arms 201.

Here, the standing wave width of the low frequency vibrator 2 can be adjusted by changing the cross sectional area of the columnar structure of the vibrator arm 201.

It should be understood by those skilled in the art that the structural shape of the above-mentioned vibrator arm is only an example, and the structural shape of the vibrator arm that may be present or later may be applicable to the present invention, and should also be included in the protection scope of the present invention. This is included here by reference.

Preferably, at least one of the four vibrator arms of the low frequency vibrator 2 is a combination of a cylindrical solid wire and a cylindrical hollow metal casing, the cross sectional area of the cylindrical hollow metal casing and the solid wire of the cylinder The cross-sectional area is not the same. For example, FIG. 2-d shows a schematic structural view of a low frequency oscillator according to a preferred embodiment of the present invention. The vibrator arm of the low frequency oscillator 2 is composed of two parts: a solid wire of a quadrangular prism and an air core metal casing of a quadrangular prism. Preferably, when the cross-sectional area of the cylindrical hollow metal casing is different from the cross-sectional area of the solid conductor of the cylinder, preferably, the cross-sectional area of the cylindrical hollow metal casing is larger than the solid conductor of the cylinder. In cross-sectional area, the air-core metal casing can function as a reverse current loop to cancel the high-low frequency between the high-frequency oscillators and the conventional +/-45-degree polarized antenna oscillator. Mutual coupling.

Here, with the above structure, on the one hand, the standing wave bandwidth of the low frequency oscillator 2 can be adjusted. On the other hand, the cylindrical hollow metal casing can also function as a reverse current loop to cancel the mutual coupling between the high and low frequencies.

Those skilled in the art should understand that the vibrator arm of the low frequency vibrator adopts a quadrangular prism as an example, and the structural shape of the vibrator arm existing or later may be applicable to the present invention, and should also be included in the protection scope of the present invention. And is hereby incorporated by reference. In addition, the number of the ribs constituting the cylinder of the low-frequency vibrator 2 vibrator arm may be the same or different, for example, may be a combination of a solid triangular prism and a hollow core triangular prism, or may be a solid triangular prism and an air core four. Combinations of prisms, etc., other different combinations of cylinders, as applicable to the present invention are also intended to be included in the scope of the present invention, and are hereby incorporated by reference. Included here.

Preferably, at least one of the four vibrator arms of the low frequency vibrator 2 is provided with a reverse current loop. For example, FIG. 2-e shows a schematic structural view of a low frequency vibrator according to a preferred embodiment of the present invention. As shown in FIG. 2-e, two segments of the four vibrator arms of the low frequency vibrator 2 extend out of two segments 208, respectively. The reverse current loop of the vibrator arm is constructed to cancel the mutual coupling between the high and low frequencies when combined with the high frequency oscillator using the conventional +/- 45 degree polarized antenna element; as shown in Figure 2-d The hollow core metal casing can function as a reverse current loop, and can also cancel the high and low frequencies when the low frequency vibrator 2 is combined with the high frequency vibrator using the conventional +/- 45 degree polarized antenna vibrator. The role of mutual coupling.

Those skilled in the art should understand that the structure of the reverse current loop described above is merely an example, and the structure of the existing reverse current loop that may occur in the future may be applicable to the present invention and should also be included in the scope of the present invention. It is hereby incorporated by reference.

Preferably, at least one of the four vibrator arms is provided with at least one groove. For example, as shown in FIG. 2-b, a plurality of grooves are respectively disposed on the four vibrator arms to change the pattern performance of the low frequency vibrator and adjust the cross polarization discrimination rate of the low frequency vibrator.

Here, the low frequency vibrator can change the pattern performance of the low frequency vibrator and adjust the cross polarization discrimination rate of the low frequency vibrator by setting the groove, changing the number of the grooves, or changing the shape of the groove.

Those skilled in the art should understand that the shape or the number of the grooves provided on the vibrator arm is only an example, and the number of grooves can be set according to the requirements of the performance of the antenna, and the existing or future anti-groove may occur. Shapes, as applicable to the present invention, are also intended to be included within the scope of the invention and are hereby incorporated by reference.

Further, the low frequency oscillator can be used to directional antennas.

According to another aspect of the present invention, a multi-frequency multi-port antenna device is provided, wherein the antenna device includes: a main reflector, at least one column of low frequency oscillator arrays disposed on the main reflector, and the at least one column At least one column of high frequency oscillator arrays adjacent to the low frequency oscillator array, wherein each of the at least one column of low frequency oscillator arrays includes at least one of the low frequency oscillators, wherein the low frequency oscillator and the high frequency oscillator are not obscured from each other.

One of the embodiments is shown in Figure 3-a.

Fig. 3-a shows a schematic structural view of a multi-frequency multi-port antenna device including the low frequency oscillator. The multi-frequency multi-port antenna device 3 includes: a main reflector 301, a column of low-frequency oscillator arrays 302 disposed on the main reflector 301, and two columns of high-frequency oscillator arrays 303 adjacent to the array of low-frequency oscillator arrays 302, wherein The low frequency oscillator array 302 is composed of three low frequency oscillators 2, which are not shielded from each other. In the multi-frequency multi-port antenna device 3 shown in FIG. 3-a, the high-frequency vibrators in the two-row high-frequency oscillator array 303 are placed in a straight line in the horizontal direction, and are also placed in a straight line in the vertical direction, and the low-frequency oscillator array is arranged. 302 is also placed in a straight line, and the high frequency vibrator and the low frequency vibrator are not blocked from each other.

It should be understood by those skilled in the art that the structure of the above-mentioned multi-frequency multi-port antenna device 3 is only an example, the number of low frequency oscillator arrays may have two columns, three columns or more columns, and the low frequency oscillator array 302 is composed of three low frequency oscillators 2 The composition is also merely an example. Each of the at least one column of the low frequency oscillator arrays may include one, two, three or more low frequency vibrators 2 of the present invention, as long as at least one of each of the at least one column of the low frequency oscillator arrays is included. The low frequency vibrator 2 can be applied to the present invention. The number of the high frequency oscillator arrays 303 may also be set according to requirements, and may be one column, two columns, three columns or multiple columns. In addition, the high-frequency vibrators in the two-row high-frequency oscillator array 303 are placed in a straight line in the horizontal direction, and are also placed in a straight line in the vertical direction. For example, the arrangement of the high-frequency vibrators in the high-frequency oscillator array may also be irregular. The arrangement of the low frequency oscillators in the low frequency oscillator array may also be arranged in an irregular manner, as long as the arrangement of the low frequency oscillator and the high frequency oscillator is not mutually occluded, and the invention is applicable to the present invention. Within the scope of protection of the present invention.

Preferably, at least one corner of the four vibrator arms of the at least one low frequency vibrator placed horizontally and vertically in a "+" shape is provided with a high frequency vibrator. For example, FIG. 3-b shows a schematic diagram of a high frequency oscillator provided at one corner of a low frequency oscillator of a multi-frequency multi-port antenna apparatus according to an aspect of the present invention, as shown in FIG. 3-b, the low frequency oscillator A high frequency vibrator is provided at one corner of 2.

It should be understood by those skilled in the art that a high frequency vibrator is disposed at one corner of the low frequency vibrator 2 as an example, and a high frequency vibrator may be respectively disposed at any two corners of the low frequency vibrator 2, or may be provided in the low frequency vibrator 2 a high frequency vibrator is placed on any three corners, It is also possible to provide a high frequency vibrator at each of the four corners of the low frequency vibrator 2, as long as at least one of the corners of the at least one low frequency vibrator 2 is provided to be provided with a high frequency vibrator, which is also suitable for use in the present invention, and is also included in the present invention. Within the scope of protection.

Preferably, the type of the high frequency vibrator disposed on at least one corner of the at least one low frequency vibrator may be different. For example, the high frequency vibrator may adopt a horizontally placed sheet structure, as described in FIG. 1-a; or a vertically placed sheet structure, such as the low frequency vibrator sheet structure in FIG. 1-b. A sheet-shaped vibrator arm in which a high-frequency vibrator is placed upright. Further, the high frequency vibrators disposed at different corners of the at least one low frequency vibrator may respectively adopt different types of vibrator arms, as shown in FIG. 3-c.

Those skilled in the art should understand that the types of the high-frequency vibrator arms described above are merely examples, and the types of high-frequency vibrator arms that may or may not be present in the future are applicable to the present invention and should also be included in the scope of the present invention. And is hereby incorporated by reference.

Preferably, the cross-sectional area of the at least one vibrator arm in the shape of a column is set according to antenna performance requirements. For example, when the bandwidth of the antenna required by the user is relatively narrow, the cross-sectional area of the vibrator arm can be set to be relatively small. When the user desires a wide-band antenna, the cross-sectional area of the vibrator arm can be set to be relatively large, or the vibrator arm can be used more. The cross-sectional area is combined to facilitate flexible setting according to the requirements of antenna performance.

Those skilled in the art should understand that the arrangement of the low-frequency vibrator arm is only an example, and the existing or future possible low-frequency vibrator arm can be applied to the present invention and should be included in the protection scope of the present invention. And is hereby incorporated by reference.

Preferably, the cross-sectional area of the cylindrical hollow metal casing and the cross-sectional area of the solid wire of the cylinder are respectively set according to antenna performance requirements. Generally, a wide cross-sectional area is used to design a broadband radiating element. If a special requirement for narrow frequency is required, a thinner cross-sectional area is considered.

Here, the four vibrator arms of the low frequency vibrator of the multi-frequency multi-port antenna device are placed horizontally and vertically by using a "+" shape, and each adjacent two mutually perpendicular vibrator arms are interposed. Feeding, forming a +/- 45 degree polarization, solves the problem of high and low frequency oscillator arms occluding each other, which is beneficial to reduce mutual coupling between high and low frequency oscillators.

Preferably, the high-low frequency vibrator is further reduced by adding a reverse current loop to the vibrator arm of the low-frequency vibrator, changing the shape of the vibrator arm of the low-frequency vibrator, or making a groove on the vibrator arm. Mutual coupling, and improve the pattern performance of the antenna device and change the standing wave bandwidth of the low frequency oscillator to improve the performance of the antenna device.

It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim. In addition, it is to be understood that the word "comprising" does not exclude other elements or steps. A plurality of units or devices recited in the system claims can also be implemented by a unit or device by software or hardware. The first, second, etc. words are used to denote names and do not denote any particular order.

Claims

A low frequency oscillator, wherein the low frequency oscillator has four vibrator arms, the four vibrator arms are horizontally placed in a "+" shape, and each adjacent two mutually perpendicular vibrator arms are fed .
The low frequency oscillator of claim 1, wherein the manner of feeding comprises at least one of the following:

Coupled feed;

Direct feed.
The low frequency vibrator of claim 1, wherein at least one of the four vibrator arms is in the form of a sheet.
The low frequency oscillator of claim 1 wherein at least one of the four vibrator arms is cylindrical.
The low frequency vibrator according to claim 1, wherein at least one of the four vibrator arms is a combination of a cylindrical solid wire and a cylindrical hollow metal casing, and a cross sectional area of the cylindrical hollow metal casing The cross-sectional area of the solid wire of the cylinder is not the same.
The low frequency vibrator according to any one of claims 1 to 5, wherein at least one of the four vibrator arms is provided with a reverse current loop.
The low frequency vibrator according to any one of claims 1 to 5, wherein at least one of the four vibrator arms is provided with at least one groove.
A multi-frequency multi-port antenna device, wherein the antenna device comprises: a main reflector, at least one array of low frequency oscillators disposed on the main reflector, and at least one column of high frequencies adjacent to the at least one column of low frequency oscillator arrays An array of transducers, wherein each of said at least one column of low frequency oscillator arrays comprises at least one low frequency oscillator according to any one of claims 1 to 7, wherein said low frequency oscillator and said high frequency oscillator are not obscured by each other .
The antenna device according to claim 8, wherein at least one of said four vibrator arms of said at least one of said low frequency vibrators disposed horizontally and vertically in a "+" shape is provided with a high frequency vibrator.
The antenna device according to claim 9, wherein said at least one corner is set The type of high frequency oscillator can vary.
The antenna device according to any one of claims 8 to 10, wherein a cross-sectional area of the at least one vibrator arm in a column shape is set according to an antenna performance requirement.
The antenna device according to any one of claims 8 to 10, wherein a cross-sectional area of the cylindrical hollow metal casing and a cross-sectional area of the solid wire of the cylinder are respectively set according to antenna performance requirements.